Rman Datafile Recovery

7/29/2019 Rman Datafile Recovery

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Contributor: Arjun Raja

REQUIREMENT: RECOVER DATAFILE USING RMAN

Ex: users01.dbf datafile removed from disk by rm command:

SQL> select file_name from dba_data_Files;

FILE_NAME--------------------------------------------------------------------------------/opt/oracle/oradata/dgtest9i/system01.dbf/opt/oracle/oradata/dgtest9i/undotbs01.dbf

/opt/oracle/oradata/dgtest9i/users01.dbf

SQL> desc test;ERROR:ORA-04043: object test does not exist

SQL> create table test (col_1 number(10)) tablespace users;

Table created.

Now remove users01.dbf datafile with rm command to simulate a disk crash.

SQL> exitDisconnected from Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit ProductionWith the Partitioning, OLAP and Oracle Data Mining optionsJServer Release 9.2.0.4.0 - Production[oracle@itlinuxdevblade07 arch]$ cd /opt/oracle/oradata/dgtest9i[oracle@itlinuxdevblade07 dgtest9i]$ rm users01.dbf[oracle@itlinuxdevblade07 dgtest9i]$sql

SQL> select * from test;

select * from test*

ERROR at line 1:ORA-00376: file 3 cannot be read at this timeORA-01110: data file 3: '/opt/oracle/oradata/dgtest9i/users01.dbf'SQL> exitDisconnected from Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit ProductionWith the Partitioning, OLAP and Oracle Data Mining optionsJServer Release 9.2.0.4.0 - Production[oracle@itlinuxdevblade07 dgtest9i]$SQL> shutdown abort;ORACLE instance shut down.SQL> startup mount;ORACLE instance started.

Total System Global Area 236422544 bytesFixed Size 742800 bytesVariable Size 201326592 bytesDatabase Buffers 33554432 bytesRedo Buffers 798720 bytesDatabase mounted.SQL> exitDisconnected from Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit ProductionWith the Partitioning, OLAP and Oracle Data Mining options


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JServer Release 9.2.0.4.0 - Production[oracle@itlinuxdevblade07 dgtest9i]$ rman target / catalog rman/rman@rmanp

Recovery Manager: Release 9.2.0.4.0 - 64bit Production

Copyright (c) 1995, 2002, Oracle Corporation. All rights reserved.

connected to target database: DGTEST9I (DBID=227642821)connected to recovery catalog database

RMAN> run{2> SQL 'ALTER DATABASE DATAFILE 3 offline';3> restore datafile 3;4> recover datafile 3;5> SQL 'ALTER DATABASE DATAFILE 3 online';6> }

sql statement: ALTER DATABASE DATAFILE 3 offline

Starting restore at 21-APR-06

allocated channel: ORA_SBT_TAPE_1channel ORA_SBT_TAPE_1: sid=11 devtype=SBT_TAPEchannel ORA_SBT_TAPE_1: Data Protection for Oracle: version 5.2.4.0allocated channel: ORA_DISK_1channel ORA_DISK_1: sid=12 devtype=DISKchannel ORA_DISK_1: starting datafile backupset restorechannel ORA_DISK_1: specifying datafile(s) to restore from backup setrestoring datafile 00003 to /opt/oracle/oradata/dgtest9i/users01.dbfchannel ORA_DISK_1: restored backup piece 1piece handle=/opt/oracle/product9204/dbs/1mhh3cms_1_1 tag=TAG20060421T180059 params=NULLchannel ORA_DISK_1: restore completeFinished restore at 21-APR-06

Starting recover at 21-APR-06using channel ORA_SBT_TAPE_1using channel ORA_DISK_1

starting media recovery

archive log thread 1 sequence 6 is already on disk as file /opt/oracle/dgtest9i/arch/arch6.logarchive log thread 1 sequence 7 is already on disk as file /opt/oracle/dgtest9i/arch/arch7.logarchive log thread 1 sequence 8 is already on disk as file /opt/oracle/dgtest9i/arch/arch8.logarchive log thread 1 sequence 9 is already on disk as file /opt/oracle/dgtest9i/arch/arch9.logarchive log thread 1 sequence 10 is already on disk as file /opt/oracle/dgtest9i/arch/arch10.logarchive log thread 1 sequence 11 is already on disk as file /opt/oracle/dgtest9i/arch/arch11.log

archive log thread 1 sequence 12 is already on disk as file /opt/oracle/dgtest9i/arch/arch12.logarchive log thread 1 sequence 13 is already on disk as file /opt/oracle/dgtest9i/arch/arch13.logarchive log thread 1 sequence 14 is already on disk as file /opt/oracle/dgtest9i/arch/arch14.logarchive log thread 1 sequence 15 is already on disk as file /opt/oracle/dgtest9i/arch/arch15.logarchive log thread 1 sequence 16 is already on disk as file /opt/oracle/dgtest9i/arch/arch16.logarchive log thread 1 sequence 17 is already on disk as file /opt/oracle/dgtest9i/arch/arch17.logarchive log thread 1 sequence 18 is already on disk as file /opt/oracle/dgtest9i/arch/arch18.logarchive log thread 1 sequence 19 is already on disk as file /opt/oracle/dgtest9i/arch/arch19.logarchive log thread 1 sequence 20 is already on disk as file /opt/oracle/dgtest9i/arch/arch20.logarchive log thread 1 sequence 21 is already on disk as file /opt/oracle/dgtest9i/arch/arch21.log


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archive log thread 1 sequence 22 is already on disk as file /opt/oracle/dgtest9i/arch/arch22.logarchive log thread 1 sequence 23 is already on disk as file /opt/oracle/dgtest9i/arch/arch23.logarchive log thread 1 sequence 24 is already on disk as file /opt/oracle/dgtest9i/arch/arch24.logarchive log filename=/opt/oracle/dgtest9i/arch/arch6.log thread=1 sequence=6archive log filename=/opt/oracle/dgtest9i/arch/arch7.log thread=1 sequence=7archive log filename=/opt/oracle/dgtest9i/arch/arch8.log thread=1 sequence=8archive log filename=/opt/oracle/dgtest9i/arch/arch9.log thread=1 sequence=9archive log filename=/opt/oracle/dgtest9i/arch/arch10.log thread=1 sequence=10archive log filename=/opt/oracle/dgtest9i/arch/arch11.log thread=1 sequence=11archive log filename=/opt/oracle/dgtest9i/arch/arch12.log thread=1 sequence=12archive log filename=/opt/oracle/dgtest9i/arch/arch13.log thread=1 sequence=13archive log filename=/opt/oracle/dgtest9i/arch/arch14.log thread=1 sequence=14archive log filename=/opt/oracle/dgtest9i/arch/arch15.log thread=1 sequence=15archive log filename=/opt/oracle/dgtest9i/arch/arch16.log thread=1 sequence=16archive log filename=/opt/oracle/dgtest9i/arch/arch17.log thread=1 sequence=17archive log filename=/opt/oracle/dgtest9i/arch/arch18.log thread=1 sequence=18archive log filename=/opt/oracle/dgtest9i/arch/arch19.log thread=1 sequence=19archive log filename=/opt/oracle/dgtest9i/arch/arch20.log thread=1 sequence=20archive log filename=/opt/oracle/dgtest9i/arch/arch21.log thread=1 sequence=21archive log filename=/opt/oracle/dgtest9i/arch/arch22.log thread=1 sequence=22

media recovery completeFinished recover at 21-APR-06

sql statement: ALTER DATABASE DATAFILE 3 online

RMAN>

[oracle@itlinuxdevblade07 dgtest9i]$ sql

SQL> alter database open;

Database altered.

SQL> select * from test;

no rows selected

SQL>

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Rman Datafile Recovery